<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/bluetooth/resources/bluetooth-test.js"></script>
<script src="/bluetooth/resources/bluetooth-fake-devices.js"></script>
<script>
'use strict';
const test_desc = 'The characteristic should be able to start and stop ' +
    'notifications multiple times in a row.';
let characteristic, fake_characteristic;
let startStopNotifications = () => {
  return fake_characteristic.setNextSubscribeToNotificationsResponse(
          HCI_SUCCESS)
      .then(() => characteristic.startNotifications())
      .then(() => fake_characteristic.isNotifying())
      .then(isNotifying => assert_true(isNotifying))
      .then(() =>
          fake_characteristic.setNextUnsubscribeFromNotificationsResponse(
              HCI_SUCCESS))
      .then(() => characteristic.stopNotifications())
      .then(() => fake_characteristic.isNotifying())
      .then(isNotifying => assert_false(isNotifying));
}

bluetooth_test(() => getMeasurementIntervalCharacteristic()
    .then(_ => ({characteristic, fake_characteristic} = _))
    .then(() => startStopNotifications())
    .then(() => startStopNotifications()),
    test_desc);
</script>
